Add migration code for bundle identifier chagne (close #251)
Add migration code for bundle identifier chagne (close #251)

yangchenghu/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,onevcat/CotEditor,angi2/CotEditor,onevcat/CotEditor,angi2/CotEditor,angi2/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,uchuugaka/CotEditor,eric-seekas/CotEditor,yangchenghu/CotEditor,onevcat/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,uchuugaka/CotEditor